A large crochet circle with surface crochet added later to form the walls. This was very easy to make. It is great fun to add the walls and see the labyrinth emerge though the circle itself is a bit tedious.

After I made this I made Walls of Troy which is very similar and from the same pattern.

This can be made in any yarn. The yarns for the background and circle do not have to be the same. The size can also be easily changed.